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This is a 5-3/4" Diameter, Finned Flywheel for the GX 340/390 Use the OEM non-UT2 Coil with the required #5980 coil Bracket(sold separately). Not compatible with the OEM pull rope or electric start. Must be started with an handheld electric remote starter.
3.5 lbs. Minimum coil gap .030" Torque to 65 ft/lbs